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            <td width="10%" class="headerValue"><a href="../../../../../../../../../index.html">top level</a> - <a href="index.html">periphery/contracts/adapters/paraswap/src/periphery/contracts/adapters/paraswap</a> - BaseParaSwapSellAdapter.sol<span style="font-size: 80%;"> (source / <a href="BaseParaSwapSellAdapter.sol.func-c.html">functions</a>)</span></td>
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            <td width="5%" class="headerCovTableHead">Coverage</td>
            <td width="5%" class="headerCovTableHead" title="Covered + Uncovered code">Total</td>
            <td width="5%" class="headerCovTableHead" title="Exercised code only">Hit</td>
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            <td class="headerItem">Test:</td>
            <td class="headerValue">lcov.info.p</td>
            <td></td>
            <td class="headerItem">Lines:</td>
            <td class="headerCovTableEntryHi">100.0&nbsp;%</td>
            <td class="headerCovTableEntry">21</td>
            <td class="headerCovTableEntry">21</td>
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            <td class="headerItem">Test Date:</td>
            <td class="headerValue">2024-04-09 14:12:28</td>
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            <td class="headerItem">Functions:</td>
            <td class="headerCovTableEntryHi">100.0&nbsp;%</td>
            <td class="headerCovTableEntry">1</td>
            <td class="headerCovTableEntry">1</td>
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            <td class="headerItem">Branches:</td>
            <td class="headerCovTableEntryHi">-</td>
            <td class="headerCovTableEntry">0</td>
            <td class="headerCovTableEntry">0</td>
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<pre class="sourceHeading">             Branch data     Line data    Source code</pre>
<pre class="source">
<span id="L1"><span class="lineNum">       1</span>                 :             : // SPDX-License-Identifier: BUSL-1.1</span>
<span id="L2"><span class="lineNum">       2</span>                 :             : pragma solidity ^0.8.10;</span>
<span id="L3"><span class="lineNum">       3</span>                 :             : </span>
<span id="L4"><span class="lineNum">       4</span>                 :             : import {SafeERC20} from 'aave-v3-core/contracts/dependencies/openzeppelin/contracts/SafeERC20.sol';</span>
<span id="L5"><span class="lineNum">       5</span>                 :             : import {SafeMath} from 'aave-v3-core/contracts/dependencies/openzeppelin/contracts/SafeMath.sol';</span>
<span id="L6"><span class="lineNum">       6</span>                 :             : import {PercentageMath} from 'aave-v3-core/contracts/protocol/libraries/math/PercentageMath.sol';</span>
<span id="L7"><span class="lineNum">       7</span>                 :             : import {IPoolAddressesProvider} from 'aave-v3-core/contracts/interfaces/IPoolAddressesProvider.sol';</span>
<span id="L8"><span class="lineNum">       8</span>                 :             : import {IERC20Detailed} from 'aave-v3-core/contracts/dependencies/openzeppelin/contracts/IERC20Detailed.sol';</span>
<span id="L9"><span class="lineNum">       9</span>                 :             : import {IParaSwapAugustus} from './interfaces/IParaSwapAugustus.sol';</span>
<span id="L10"><span class="lineNum">      10</span>                 :             : import {IParaSwapAugustusRegistry} from './interfaces/IParaSwapAugustusRegistry.sol';</span>
<span id="L11"><span class="lineNum">      11</span>                 :             : import {BaseParaSwapAdapter} from './BaseParaSwapAdapter.sol';</span>
<span id="L12"><span class="lineNum">      12</span>                 :             : </span>
<span id="L13"><span class="lineNum">      13</span>                 :             : /**</span>
<span id="L14"><span class="lineNum">      14</span>                 :             :  * @title BaseParaSwapSellAdapter</span>
<span id="L15"><span class="lineNum">      15</span>                 :             :  * @notice Implements the logic for selling tokens on ParaSwap</span>
<span id="L16"><span class="lineNum">      16</span>                 :             :  * @author Jason Raymond Bell</span>
<span id="L17"><span class="lineNum">      17</span>                 :             :  */</span>
<span id="L18"><span class="lineNum">      18</span>                 :             : abstract contract BaseParaSwapSellAdapter is BaseParaSwapAdapter {</span>
<span id="L19"><span class="lineNum">      19</span>                 :             :   using PercentageMath for uint256;</span>
<span id="L20"><span class="lineNum">      20</span>                 :             :   using SafeMath for uint256;</span>
<span id="L21"><span class="lineNum">      21</span>                 :             :   using SafeERC20 for IERC20Detailed;</span>
<span id="L22"><span class="lineNum">      22</span>                 :             : </span>
<span id="L23"><span class="lineNum">      23</span>                 :             :   IParaSwapAugustusRegistry public immutable AUGUSTUS_REGISTRY;</span>
<span id="L24"><span class="lineNum">      24</span>                 :             : </span>
<span id="L25"><span class="lineNum">      25</span>                 :             :   constructor(</span>
<span id="L26"><span class="lineNum">      26</span>                 :             :     IPoolAddressesProvider addressesProvider,</span>
<span id="L27"><span class="lineNum">      27</span>                 :             :     IParaSwapAugustusRegistry augustusRegistry</span>
<span id="L28"><span class="lineNum">      28</span>                 :             :   ) BaseParaSwapAdapter(addressesProvider) {</span>
<span id="L29"><span class="lineNum">      29</span>                 :             :     // Do something on Augustus registry to check the right contract was passed</span>
<span id="L30"><span class="lineNum">      30</span>                 :             :     require(!augustusRegistry.isValidAugustus(address(0)));</span>
<span id="L31"><span class="lineNum">      31</span>                 :             :     AUGUSTUS_REGISTRY = augustusRegistry;</span>
<span id="L32"><span class="lineNum">      32</span>                 :             :   }</span>
<span id="L33"><span class="lineNum">      33</span>                 :             : </span>
<span id="L34"><span class="lineNum">      34</span>                 :             :   /**</span>
<span id="L35"><span class="lineNum">      35</span>                 :             :    * @dev Swaps a token for another using ParaSwap</span>
<span id="L36"><span class="lineNum">      36</span>                 :             :    * @param fromAmountOffset Offset of fromAmount in Augustus calldata if it should be overwritten, otherwise 0</span>
<span id="L37"><span class="lineNum">      37</span>                 :             :    * @param swapCalldata Calldata for ParaSwap's AugustusSwapper contract</span>
<span id="L38"><span class="lineNum">      38</span>                 :             :    * @param augustus Address of ParaSwap's AugustusSwapper contract</span>
<span id="L39"><span class="lineNum">      39</span>                 :             :    * @param assetToSwapFrom Address of the asset to be swapped from</span>
<span id="L40"><span class="lineNum">      40</span>                 :             :    * @param assetToSwapTo Address of the asset to be swapped to</span>
<span id="L41"><span class="lineNum">      41</span>                 :             :    * @param amountToSwap Amount to be swapped</span>
<span id="L42"><span class="lineNum">      42</span>                 :             :    * @param minAmountToReceive Minimum amount to be received from the swap</span>
<span id="L43"><span class="lineNum">      43</span>                 :             :    * @return amountReceived The amount received from the swap</span>
<span id="L44"><span class="lineNum">      44</span>                 :             :    */</span>
<span id="L45"><span class="lineNum">      45</span>                 :<span class="tlaGNC tlaBgGNC">           9 :   function _sellOnParaSwap(</span></span>
<span id="L46"><span class="lineNum">      46</span>                 :             :     uint256 fromAmountOffset,</span>
<span id="L47"><span class="lineNum">      47</span>                 :             :     bytes memory swapCalldata,</span>
<span id="L48"><span class="lineNum">      48</span>                 :             :     IParaSwapAugustus augustus,</span>
<span id="L49"><span class="lineNum">      49</span>                 :             :     IERC20Detailed assetToSwapFrom,</span>
<span id="L50"><span class="lineNum">      50</span>                 :             :     IERC20Detailed assetToSwapTo,</span>
<span id="L51"><span class="lineNum">      51</span>                 :             :     uint256 amountToSwap,</span>
<span id="L52"><span class="lineNum">      52</span>                 :             :     uint256 minAmountToReceive</span>
<span id="L53"><span class="lineNum">      53</span>                 :             :   ) internal returns (uint256 amountReceived) {</span>
<span id="L54"><span class="lineNum">      54</span>                 :<span class="tlaGNC">          18 :     require(AUGUSTUS_REGISTRY.isValidAugustus(address(augustus)), 'INVALID_AUGUSTUS');</span></span>
<span id="L55"><span class="lineNum">      55</span>                 :             : </span>
<span id="L56"><span class="lineNum">      56</span>                 :             :     {</span>
<span id="L57"><span class="lineNum">      57</span>                 :<span class="tlaGNC">          27 :       uint256 fromAssetDecimals = _getDecimals(assetToSwapFrom);</span></span>
<span id="L58"><span class="lineNum">      58</span>                 :<span class="tlaGNC">          27 :       uint256 toAssetDecimals = _getDecimals(assetToSwapTo);</span></span>
<span id="L59"><span class="lineNum">      59</span>                 :             : </span>
<span id="L60"><span class="lineNum">      60</span>                 :<span class="tlaGNC">          27 :       uint256 fromAssetPrice = _getPrice(address(assetToSwapFrom));</span></span>
<span id="L61"><span class="lineNum">      61</span>                 :<span class="tlaGNC">          27 :       uint256 toAssetPrice = _getPrice(address(assetToSwapTo));</span></span>
<span id="L62"><span class="lineNum">      62</span>                 :             : </span>
<span id="L63"><span class="lineNum">      63</span>                 :<span class="tlaGNC">          27 :       uint256 expectedMinAmountOut = amountToSwap</span></span>
<span id="L64"><span class="lineNum">      64</span>                 :             :         .mul(fromAssetPrice.mul(10 ** toAssetDecimals))</span>
<span id="L65"><span class="lineNum">      65</span>                 :             :         .div(toAssetPrice.mul(10 ** fromAssetDecimals))</span>
<span id="L66"><span class="lineNum">      66</span>                 :             :         .percentMul(PercentageMath.PERCENTAGE_FACTOR - MAX_SLIPPAGE_PERCENT);</span>
<span id="L67"><span class="lineNum">      67</span>                 :             : </span>
<span id="L68"><span class="lineNum">      68</span>                 :<span class="tlaGNC">          18 :       require(expectedMinAmountOut &lt;= minAmountToReceive, 'MIN_AMOUNT_EXCEEDS_MAX_SLIPPAGE');</span></span>
<span id="L69"><span class="lineNum">      69</span>                 :             :     }</span>
<span id="L70"><span class="lineNum">      70</span>                 :             : </span>
<span id="L71"><span class="lineNum">      71</span>                 :<span class="tlaGNC">          27 :     uint256 balanceBeforeAssetFrom = assetToSwapFrom.balanceOf(address(this));</span></span>
<span id="L72"><span class="lineNum">      72</span>                 :<span class="tlaGNC">          18 :     require(balanceBeforeAssetFrom &gt;= amountToSwap, 'INSUFFICIENT_BALANCE_BEFORE_SWAP');</span></span>
<span id="L73"><span class="lineNum">      73</span>                 :<span class="tlaGNC">          27 :     uint256 balanceBeforeAssetTo = assetToSwapTo.balanceOf(address(this));</span></span>
<span id="L74"><span class="lineNum">      74</span>                 :             : </span>
<span id="L75"><span class="lineNum">      75</span>                 :<span class="tlaGNC">          27 :     address tokenTransferProxy = augustus.getTokenTransferProxy();</span></span>
<span id="L76"><span class="lineNum">      76</span>                 :<span class="tlaGNC">          18 :     assetToSwapFrom.safeApprove(tokenTransferProxy, 0);</span></span>
<span id="L77"><span class="lineNum">      77</span>                 :<span class="tlaGNC">          18 :     assetToSwapFrom.safeApprove(tokenTransferProxy, amountToSwap);</span></span>
<span id="L78"><span class="lineNum">      78</span>                 :             : </span>
<span id="L79"><span class="lineNum">      79</span>                 :<span class="tlaGNC">          18 :     if (fromAmountOffset != 0) {</span></span>
<span id="L80"><span class="lineNum">      80</span>                 :             :       // Ensure 256 bit (32 bytes) fromAmount value is within bounds of the</span>
<span id="L81"><span class="lineNum">      81</span>                 :             :       // calldata, not overlapping with the first 4 bytes (function selector).</span>
<span id="L82"><span class="lineNum">      82</span>                 :<span class="tlaGNC">           6 :       require(</span></span>
<span id="L83"><span class="lineNum">      83</span>                 :             :         fromAmountOffset &gt;= 4 &amp;&amp; fromAmountOffset &lt;= swapCalldata.length.sub(32),</span>
<span id="L84"><span class="lineNum">      84</span>                 :             :         'FROM_AMOUNT_OFFSET_OUT_OF_RANGE'</span>
<span id="L85"><span class="lineNum">      85</span>                 :             :       );</span>
<span id="L86"><span class="lineNum">      86</span>                 :             :       // Overwrite the fromAmount with the correct amount for the swap.</span>
<span id="L87"><span class="lineNum">      87</span>                 :             :       // In memory, swapCalldata consists of a 256 bit length field, followed by</span>
<span id="L88"><span class="lineNum">      88</span>                 :             :       // the actual bytes data, that is why 32 is added to the byte offset.</span>
<span id="L89"><span class="lineNum">      89</span>                 :             :       assembly {</span>
<span id="L90"><span class="lineNum">      90</span>                 :             :         mstore(add(swapCalldata, add(fromAmountOffset, 32)), amountToSwap)</span>
<span id="L91"><span class="lineNum">      91</span>                 :             :       }</span>
<span id="L92"><span class="lineNum">      92</span>                 :             :     }</span>
<span id="L93"><span class="lineNum">      93</span>                 :<span class="tlaGNC">          18 :     (bool success, ) = address(augustus).call(swapCalldata);</span></span>
<span id="L94"><span class="lineNum">      94</span>                 :<span class="tlaGNC">          12 :     if (!success) {</span></span>
<span id="L95"><span class="lineNum">      95</span>                 :             :       // Copy revert reason from call</span>
<span id="L96"><span class="lineNum">      96</span>                 :             :       assembly {</span>
<span id="L97"><span class="lineNum">      97</span>                 :             :         returndatacopy(0, 0, returndatasize())</span>
<span id="L98"><span class="lineNum">      98</span>                 :             :         revert(0, returndatasize())</span>
<span id="L99"><span class="lineNum">      99</span>                 :             :       }</span>
<span id="L100"><span class="lineNum">     100</span>                 :             :     }</span>
<span id="L101"><span class="lineNum">     101</span>                 :<span class="tlaGNC">          12 :     require(</span></span>
<span id="L102"><span class="lineNum">     102</span>                 :             :       assetToSwapFrom.balanceOf(address(this)) == balanceBeforeAssetFrom - amountToSwap,</span>
<span id="L103"><span class="lineNum">     103</span>                 :             :       'WRONG_BALANCE_AFTER_SWAP'</span>
<span id="L104"><span class="lineNum">     104</span>                 :             :     );</span>
<span id="L105"><span class="lineNum">     105</span>                 :<span class="tlaGNC">          12 :     amountReceived = assetToSwapTo.balanceOf(address(this)).sub(balanceBeforeAssetTo);</span></span>
<span id="L106"><span class="lineNum">     106</span>                 :<span class="tlaGNC">          12 :     require(amountReceived &gt;= minAmountToReceive, 'INSUFFICIENT_AMOUNT_RECEIVED');</span></span>
<span id="L107"><span class="lineNum">     107</span>                 :             : </span>
<span id="L108"><span class="lineNum">     108</span>                 :<span class="tlaGNC">          12 :     emit Swapped(address(assetToSwapFrom), address(assetToSwapTo), amountToSwap, amountReceived);</span></span>
<span id="L109"><span class="lineNum">     109</span>                 :             :   }</span>
<span id="L110"><span class="lineNum">     110</span>                 :             : }</span>
        </pre>
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